I am going for 15 days holiday and planning to visit African country. I heard that there are some issue with the electricity and I am looking for the powerful solar charger. However, I am not sure about it and have never used it before. Is there anyone who had uses it and how its output. Does it work and will it be good option to charge my laptop. If you know anything about it please share it with me and also tell me that are these solar charger safe to use.